Telescopic cover

Abstract

A telescopic cover which relieves impact caused when a cover member is stopped moving and which is less meandering. A braking mechanism is provided between one of two adjacent cover members of the telescopic cover and the other of the two adjacent cover members which telescopically moves into and out of the one cover member. The braking mechanism is provided at a distal end portion of the one cover member, and has an elastic member that presses a slide member against the other cover member. When the other cover member moves relatively to the one cover member, a friction force generated by a pressing force of the slide member serves to brake the movement of the other cover member, whereby impact caused when the other cover member stops moving is relieved. The cover member in motion is always pressed by the slide member with an orientation thereof maintained.

1. A telescopic cover comprising:
 a plurality of cover members having different sizes and successively stacked in a telescopic manner for making relative motion respectively so as to be expandable and contractible as a whole; 
 braking means provided between at least two adjacent cover members in said plurality of cover members to apply pressing force to the relative motion of the adjacent cover members in a direction substantially perpendicular to the relative motion, to thereby brake the relative motion, the braking means including an elastic member mounted on one of the two adjacent cover members and a pressing member urged by said elastic member to press against the other of the two adjacent cover members, and 
 a pressing-force adjusting mechanism mounted on the one of the two adjacent cover members to be in contact with said elastic member for adjusting the pressing force applied by said elastic member. 
 
   
   
     2. A telescopic cover comprising:
 a plurality of cover members having different sizes and successively stacked in a telescopic manner for making relative motion respectively so as to be expandable and contractible as a whole; 
 braking means provided between at least two adjacent cover members in said plurality of cover members to apply pressing force to the relative motion of the adjacent cover members in a direction substantially perpendicular to the relative motion, to thereby brake the relative motion, the braking means including an elastic member having one end mounted on one of the two adjacent cover members and the other end to cress against the other of the two adjacent cover members, and 
 a pressing-force adjusting mechanism mounted on the one of the two adjacent cover members to be in contact with said elastic member for adjusting the pressing force applied by said elastic member.